AS Chemistry (Elements Of Life)
OCR Salters B
- Created by: Zohrah
- Created on: 09-05-12 18:40
Other questions in this quiz
2. How do you work out the relative isotopic abundance using mass spectrum?
- multiply % by mass then add up totals and then divide by 100
- muliply % by mass then / 1000
3. what causes the instability of some atoms?
- not enough neutrons
- all three
- too much energy
- having too many neutrons
4. what is a alpha particle?
- helium nucei
- fast moving electrons
- short electromagnetic waves
5. what is the correct definition of half life?
- the average time taken for half of the atoms in a sample to decay
- time taken for a sample to decay
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